The purpose of this study is to determine the safety profile of long-term vedolizumab IV treatment in pediatric participants with UC or CD.
The drug being tested in this study is called Vedolizumab. Vedolizumab is being tested to treat pediatric participants who have moderately to severely active UC or CD. This study will look at the long-term safety profile in participants who take vedolizumab IV. Participants will continue receiving the same dose assigned from the parent study MLN0002-2003 \[NCT03138655\], which will remain blinded until week 40. The dosing regimen selected for the long-term study is intended to maintain clinical response at the lowest possible exposure. At the discretion of the investigator, participants receiving the low dose (150 or 100 milligram \[mg\]) of vedolizumab IV may be escalated to the high dose (300 or 200 mg) if the participants demonstrate disease worsening at 2 consecutive visits (scheduled or unscheduled). Participants who experience continued disease worsening during the study despite being administered vedolizumab 300 or 200 mg every 8 weeks (Q8W) will be discontinued from the study. Study duration will be until vedolizumab IV is commercially available for pediatric indication(s) in the participant's country or until other drug access programs become available (whichever comes first), the participant turns 18 years of age and can be transitioned to commercial drug, the participant withdraws from the study, or the sponsor decides to close the study (up to approximately 8 years).
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Enrollment
59
Vedolizumab intravenous infusion
Cedars-Sinai Medical Center
Percentage of Participants With Treatment-emergent Adverse Events (TEAEs)
AE defined as any untoward medical occurrence in clinical investigation participants administered drug; it does not necessarily have to have causal relationship with this treatment. An AE can therefore be any unfavorable and unintended sign (example, a clinically significant abnormal laboratory finding), symptom, or disease temporally associated with the use of a drug whether or not it was considered related to the drug. TEAE was defined as an AE whose date of onset occurred on or after the first dose of study drug, or an already-present AE that worsened in intensity or frequency following the treatment start, occurring from the first dose of study drug to the day of last dose of study drug.
Time frame: From first dose of study drug up to end of follow up (up to 6.8 years)
Percentage of Participants With UC Who Achieved and Maintained Clinical Response Based on Complete Mayo Score
Clinical response was defined as a continued reduction in complete Mayo score of \>=3 points and \>=30 percent (%) from baseline (at initiation of MLN0002-2003) and continued decrease in rectal bleeding subscore of \>=1 point from baseline, or absolute rectal bleeding subscore of less than or equal to (\<=1) point. Mayo score was an instrument designed to measure disease activity of UC. It consisted of 4 subscores: stool frequency, rectal bleeding, findings on endoscopy and physician rating of disease activity, each graded from 0 to 3 where 0 indicated normal and 3 indicated more severe disease. These scores were summed to give a total score range of 0 to 12; where higher scores indicated more severe disease.
Time frame: At Week 32
Percentage of Participants With CD Who Achieved and Maintained Clinical Response Based on Simple Endoscopic Score for Crohn's Disease (SES-CD) Score and Crohn's Disease Activity Index (CDAI) at Week 32
Maintenance of clinical response based on SES-CD and CDAI was defined as a 50% reduction in SES-CD score on endoscopy compared to the baseline endoscopy \[at initiation of MLN0002-2003 (NCT03138655)\]; and continued reduction in CDAI that is a \>= 70 point decrease from the baseline CDAI score at the initiation of MLN0002-2003 (NCT03138655). CDAI was a research tool used to quantify the symptoms of participants with Crohn's disease. SES-CD consisted of 3 variables: ulcer size, ulcerated and affected surfaces and presence of narrowing each graded from 0 to 3 with score of 0 means no colonic lesions or mucosal healing, and SES-CD greater than (\>) 1 indicated the presence of mucosal lesions.
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Los Angeles, California, United States
Children's Hospital of Orange County
Orange, California, United States
University of California San Francisco
San Francisco, California, United States
Connecticut Children's Medical Center
Hartford, Connecticut, United States
Nemours Childrens Specialty Care - Jacksonville
Jacksonville, Florida, United States
Children's Center for Digestive Healthcare
Atlanta, Georgia, United States
Columbia University Medical Center
New York, New York, United States
Texas Children's Hospital
Houston, Texas, United States
Seattle Children's Hospital
Seattle, Washington, United States
Hopital Necker-Enfants Malades
Paris, Île-de-France Region, France
...and 13 more locations
Time frame: At Week 32
Time to Major Inflammatory Bowel Disease (IBD) - Related Events
Time to major IBD-related events was defined as time from study treatment start to first major IBD-related hospitalization, surgery, or procedure due to UC and CD.
Time frame: Up to 6.8 years
Change From Baseline in IMPACT-III - Total Score
The IMPACT-III questionnaire was a self-reported measure with 35 closed questions encompassing 6 domains: Bowel Symptoms (7 items), Systemic Symptoms (3 items), Social Functioning (12 items), Body Image (3 items), Treatment/Interventions (3 items), and Emotional Functioning (7 items). The IMPACT-III used a 5-point Likert scale ranging from 1 to 5 for all answers. The total score was obtained by summing individual domain scores. The total score ranged from 35 to 175, with higher scores suggesting better quality of life.
Time frame: Baseline, Weeks 24, 48, 72, 96, 120, 144, 168, 192, 216, 240, 264, 288, and 312
Change From Baseline in IMPACT-III - Bowel Symptoms Domain Score
The IMPACT-III questionnaire was a self-reported measure with 35 closed questions encompassing 6 domains. The Bowel Symptoms domain consisted of 7 items. Each item was scored using a 5-point Likert scale ranging from 1 to 5. The bowel symptoms domain score ranged from 7 to 35, with higher scores suggesting a better quality of life.
Time frame: Baseline, Weeks 24, 48, 72, 96, 120, 144, 168, 192, 216, 240, 264, 288, and 312
Change From Baseline in IMPACT-III - Systemic Symptoms Domain Score
The IMPACT-III questionnaire was a self-reported measure with 35 closed questions encompassing 6 domains. The systemic symptoms domain consisted of 3 items. Each item was scored using a 5-point Likert scale ranging from 1 to 5. The systemic symptoms domain score ranged from 3 to 15, with higher scores suggesting a better quality of life.
Time frame: Baseline, Weeks 24, 48, 72, 96, 120, 144, 168, 192, 216, 240, 264, 288, and 312
Change From Baseline in IMPACT-III - Social Functioning Domain Score
The IMPACT-III questionnaire was a self-reported measure with 35 closed questions encompassing 6 domains. The social functioning domain consisted of 12 items. Each item was scored using a 5-point Likert scale ranging from 1 to 5. The social functioning domain score ranged from 12 to 60, with higher scores suggesting a better quality of life.
Time frame: Baseline, Weeks 24, 48, 72, 96, 120, 144, 168, 192, 216, 240, 264, 288, and 312
Change From Baseline in IMPACT-III - Body Image Domain Score
The IMPACT-III questionnaire was a self-reported measure with 35 closed questions encompassing 6 domains. The body image domain consisted of 3 items. Each item was scored using a 5-point Likert scale ranging from 1 to 5. The body image domain score ranged from 3 to 15, with higher scores suggesting a better quality of life.
Time frame: Baseline, Weeks 24, 48, 72, 96, 120, 144, 168, 192, 216, 240, 264, 288, and 312
Change From Baseline in IMPACT-III - Treatment/Interventions Domain Score
The IMPACT-III questionnaire was a self-reported measure with 35 closed questions encompassing 6 domains. The treatment/interventions domain consisted of 3 items. Each item was scored using a 5-point Likert scale ranging from 1 to 5. The treatment/interventions domain score ranged from 3 to 15, with higher scores suggesting a better quality of life.
Time frame: Baseline, Weeks 24, 48, 72, 96, 120, 144, 168, 192, 216, 240, 264, 288, and 312
Change From Baseline in IMPACT-III - Emotional Functioning Domain Score
The IMPACT-III questionnaire was a self-reported measure with 35 closed questions encompassing 6 domains. The emotional functioning domain consisted of 7 items. Each item was scored using a 5-point Likert scale ranging from 1 to 5. The emotional functioning domain score ranged from 7 to 35, with higher scores suggesting a better quality of life.
Time frame: Baseline, Weeks 24, 48, 72, 96, 120, 144, 168, 192, 216, 240, 264, 288, and 312
Height Velocity at Week 48 and Every 48 Weeks
Height velocity (centimeter per year \[cm/year\]) was calculated as the change in height divided by the duration \[time between the two height measures\].
Time frame: At Weeks 48, 96, 144, 192, 240, 288, and 336
Change From Baseline in Height
Change from baseline in height was reported.
Time frame: Baseline, Weeks 48, 96, 144, 192, 240, 288, 336
Change From Baseline in Weight
Change from baseline in weight was reported.
Time frame: Baseline, Weeks 24, 48, 72, 96, 120, 144, 168, 192, 216, 240, 264, 288, 312, and 336
Change From Baseline in Body Mass Index (BMI)
BMI was calculated as Weight (in kilograms)/height (in meters square).
Time frame: Baseline, Weeks 24, 48, 72, 96, 120, 144, 168, 192, 216, 240, 264, 288, 312, and 336
Percentage of Participants Who Achieved Tanner Stage V at or Before Age 16 (in Females) or Age 17 (in Males)
Tanner Stage Evaluation was a scale used to evaluate growth parameters standardized for age, sex, and pubertal development. Female pubertal development staged by pubic hair development and breast size; male pubertal development staged by size of the genitalia and development of pubic hair. Rated in 5 stages: stage 1 (no development) to 5 (adult-like development in quantity and size). Tanner stage was assessed at or before age 16 years for females or 17 years for males.
Time frame: Up to 6.8 years